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Finding the Fourth Proportional to 56,378.88, 84,154.50 and 49,735.44

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Solution

The fourth proportional to 56,378.88, 84,154.50 and 49,735.44 is: 74,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,378.88 : 84,154.50 = 49,735.44 : x
  2. Step 2: Convert to fraction form
    56,378.88/84,154.50 = 49,735.44/x
  3. Step 3: Cross multiply
    56,378.88x = 84,154.50 × 49,735.44
  4. Step 4: Simplify right side
    56,378.88x = 4,185,461,085.48
  5. Step 5: Solve for x
    x = 4,185,461,085.48/56,378.88
  6. Step 6: Final answer
    x = 74,238.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.